My paper was recently cited but the text leading up to the citation has little to do with the content of my paper. They seem to reference some ideas I included in the "Future Work" section of my paper, but they are ideas that I never began to research, and the reference is a bit of a stretch. I'm not convinced they even read my paper.
Edit: As far as I can tell, the section where they cited me was basically a survey of techniques. The technique that they attributed to me has been around for longer than I've been alive. I just mentioned in my paper that the technique could be extended in a specific way. But they made no mention of my idea for the extension.
Should I do anything about this? Or should I just enjoy the citation?